How can be valency defined???
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In chemistry, the valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.
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Answer:
valency is the:-
8- total no. of electrons in the outermost shell(if electrons in outermost shell are in no.4,5,6,7)
or
if the electrons in the outermost shell are in no.1, 2, 3and 4 the valency will be equal to the no. of electrons in the outermost shell.
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